gis in environmental and water resources engineering
DESCRIPTION
GIS in Environmental and Water Resources Engineering. Research Progress Report Nov 20, 1998. Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi Environmental Risk Assessment: Hay-Wilson, Romanek, Kim. Global runoff: Asante, Lear - PowerPoint PPT PresentationTRANSCRIPT
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GIS in Environmental and Water Resources Engineering
Research Progress Report Nov 20, 1998
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Brad Hudgens
Geospatial Data Development for Water Availability Modeling
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Status• Sulphur : re-model w/ new CPs by Dec 2• Neches : have TNRCC review data, need CPs from F&N• Nueces : TNRCC working location review• Guadalupe : TNRCC wants DRG database• San Antonio :
• Prepro : working on network connectivity
• Water for Texas Conference : presentation by Nov 27
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90m DEM limitations
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David Mason
Geospatial Data Development for Water Availability Modeling
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Building the River Network
• Objective is to create a single-line network
• Must remove open water features– use Query tool to select only R,S, and T streams
– use USGS open water centerlines to define a linear “transport path”
• Using Arcview, manually delineate necessary streams not represented by rf3
• Place an outlet point at each water right location using CRWR-Prepro
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Digitizing Streams
Correct stream identified
Water Right location (red dot)
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“The Holdup”
• The water right locations to be used as control points for the watershed delineation process must first be reviewed by TNRCC for accuracy.
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Trinity River TMDL
Subtask on Network Analyst
Kim Davis
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Tools Used
• ArcView Network Analyst– Routing– Tying Points to Network
• Avenue scripts developed by Zechuan Ye– Ties points to network within tolerance
– Accessory scripts for manual corrections
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Prepared Stream Network
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Add Points of Interest
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SOLVING
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Route Solution
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AREAS
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Current Work
• Problems Encountered– RF3– Avenue– Network Analyst
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Future Work
• Finish method development for point data– Figure out code/script issues– Is it on a stream we have?
• Apply to the Trinity Basin
• Attribute Pollution Sources
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Jona Finndis Jonsdottir
Geospatial Data for Total Maximum Daily Loads
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Topographic Maps, DRGs
• Good to understand and correct the river network
• Can be added to the view using hot link
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Hot Link• In Quads attribute table,
add a field with the file names of the DRGs
• Write an appropriate script• Activate the hot link in
Theme Properties
• Click on the cell where you want the topographic map
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How to do this?
• But what is the best way to add the field with the file names to the attribute table?
• Does someone have a god idea?
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New Tool Development for Water Modeling
Richard Gu
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Problems need to be solved
• Calculate the drainage area of user-defined control points
• Build stream network relations
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Create a user-defined input point theme
• The point coverage contains different type of point.
• The user can define the ID of the control points.
• The input ID will be unique.
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Implementation: Addpnt_new.ave
• Script: Addpnt_new.ave.
• User interface:options={"Diversion point", "Stream gage"}
choise=msgbox.choiceasstring(options,"Choose the type of control point:","Select")
id_number=msgbox.input("Enter the ID number:","Input control point","0")
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Calculate the user defined drainage area
• Grid solution:– Identified the “Stream gage” points from the input coverage.
– Make a multipoint object from the points identified.
– Extract the points from the Flow-Direction grid and make them NODATA.
– Run Flow-Accumulation.
• Implementation: NewFdrCreat.ave
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Build up stream network relations
• Algorithm: get a multi-point coverage,
a line coverage;
check all the points of the point coverage
are on the stream arcs;
if(a point is not a node)then
{split the arc at this point;
make the point fnode of the downstream;
make the point tnode of the upstream};
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1
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44 56
6 67
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77
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1 1
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Esteban Azagra
Surface Water Modeling
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Rainfall runoff
GIS
HMS
RunHEC-PrePro
Comparison
TopographicHydrologic
Topologic
ParametersCalibration
Field Data
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Progress Report: Surface-Subsurface Modeling
Shiva Niazi
Ann Dennis
November 20, 1998
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Model Domain Defined by LBG Guyton
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Model Domain
Texas.shpModel_basins.shpAquifer.shpCounties.shp
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Standard Hydrologic Grid
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Lesley Hay Wilson
Spatial Environmental Risk Assessment
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Current Research Status• Revising draft dissertation proposal based on
comments from Dr. Charbeneau
• Objective is to develop the spatial risk assessment methodology with emphasis on application to large, complex sites
• Proposal defense scheduled for Dec 11th
• Beginning work on presentation for the defense
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Other Activities• Completing paper for the 1999 CSIRO Remediation
Conference (team)• IGERT NSF proposal activities
– working with Dr. Katz on the “capstone” course outline
– preparing a Marcus Hook project summary • Participating in development of a work plan with Dr.
Loehr’s research team to implement environmentally acceptable endpoint studies at Marcus Hook
• Drafting paper abstract for EPA conference: “Environmental Problem Solving with GIS”
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Andrew Romanek
Surface Representation of the Marcus Hook Refinery
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Activities• Since last time:
– Seminar– ESP Poster– COC Transport Extension– Review of nearby facility data
• For next two weeks:– Hydrology project -> develop transient
recharge rate for GW model
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COC Transport Extension
• 4 step extension to surface water model to characterize COC transport
• Conservative - no decay except from additional flow
• Compare to WQS
• Waiting on data - will complete by Jan. ‘99
Point Sources
Flow and Load Grids
Accumulated Flow and Load Grids
Predicted Concentration Grid
Load = Flow * Concentration
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Spatial Analysis of Sources and Source Areas on Marcus
HookProgress report by Julie Kim
Friday, November 20, 1998
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Lube Plant Area• Tanks• Historical Features
– ponds– storage tanks– process areas– storage areas– loading/unloading areas
• Former RCRA Features– EPA AOC’s
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Lube Area Data Spreadsheet
• Fields from database– Coverage number
– Coverage ID
– Fcode
– Location ID
– Location label
– Environmental condition
– Reference
• New fields added– Materials stored
– Volume stored
– Time of operation
– Releases
– Data classification number
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Data Classification
1-Specific release with volume and date or time
2-Anecdotal evidence describing release but no time or data specified; visual observation of standing oil or stained soils
3-Oily stains, discoloration or other evidence based on historical photos or reports
4-No releases identified; not a source feature
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Spreadsheet With New Fields
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Future Work
• Compare concentration data in spreadsheet with data in environmental database
• Look for patterns in releases• Edit info in Releases Field• Join data with attributes table in Arcview• Use releases with best info to see if they correlate
with data in environmental database• For #4 classification, look through historical reports
for more info
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Global Runoff Routing
Kwabena Asante
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Comparison of Old and New Delineations
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Flow Length Zones for Each Watershed
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Grid Cell Translation from High to Low Resolution
Mary LearNovember 20, 1998
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Project Description
• Make a tool to translate fine resolution grids to any specified coarse resolution mesh
• Write the tool using Arc Macro Language (AML)
• GOAL: Identify downstream polygon in a new field in Value Attribute Table (VAT)
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Sample Area
Niger River Basin2.3 million km^2
•Well studied area•Variety of climatic regions•Variety of rainfall values
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Grid and Mesh
FINE RESOLUTION Flow Direction Grid 1km x 1km
COARSE RESOLUTION Fishnet (Polygons) 30km x 30km
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Output - Method I
“Simple” Method• Eight Direction Output!• Cardinal Directions Preferred
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Output - Method II
FLOW DIRECTION GRID 3 Directions out of 8 Pourpoint Method
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Output - Method II
Inability to Choose Diagonal Directions
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Puzzles to Solve
• Eight Pour-Point Direction
• Diagonal Directions
• Translating the output to Geographic Coordinates
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Patrice Melancon
Pollutant Loading Model for Tillamook Bay
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Patrice’s Progress to 20 Nov 1998
• Draft of Methodology Chapter has been turned in
• Requirements for metatdata are being reviewed; starting to look at MetaMaker
• Downloaded FDGC standard - printed and bound - available at CRWR
• Transferred all currrent final coverages and grids to Pacific
• Finalized hydrology and bactimodel project files
• Bactimodel.apr sent to ODEQ for ‘beta testing’ at their request
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EMC Values
• Still looking for articles to support EMC values for general ag/cropland and for all baseflow values
• Have found several articles with values that may be of use for sediment part of model
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Goals for Next Meeting - 11 Dec
• Draft of Intro/Background
• Draft of Results/Conclusions Chapter
• Finish metadata for all final data sets
• Finish literature search to support EMC values
• Decide how to handle sediment model
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Katherine Osborne
Water Quality Master Planning for Austin
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Review Steps Import DEMs using ArcInfo
Used ArcView after finding metadata for DEMs
Received Seamless DEMS from EROS
Add USGS Gauge pointsUsed points from Christine’s work
• Obtain stream file from City of Austin Delineate watersheds
• Submit these watersheds to COA Read Urban Model material
Ok, began reading.
Attend GIS class in CRP
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Seamless 30m DEM
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Difference between seamless and compiled 30m DEMs
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Delineated watersheds using 10,000 cell threshold
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Next Steps
• Decide on which DEMs to use.
• Submit delineated watersheds to COA.
• Read Urban Model material.
• Work with CAPCO data to develop more accurate watersheds.
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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Seth Ahrens
Flood Forecasting in Houston
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Final Version of Model
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Comparison of Gauge Areas (km2)
AllDLG
SomeDLG
NoDLG
Actual
Total 811 792 798 821
Katy 155 162 196 164
Bear 48 42 90 56
Langham 91 93 58 64
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Airborne LIDAR Topographic Mapping System
• Developed by the Houston Advanced Research Center (HARC)
• Ten-foot DEM resolution
• Vertically accurate to within six inches
• Nearly all of Harris County complete
• Several other metro areas by 12/99
• 133 Mb per Quarter Quad Sheet
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Example Data Set
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Image Map from DOQQ DataAerial View of Addicks Reservoir
Click on blue dots to view pictures and text.
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Ben Bigelow
Midwest Flood Frequency Analysis
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Research Update
• Wrote two more chapters of research report• Writing Results and Conclusions for report• Gave presentation at interagency meeting in
St. Louis (USACE,FEMA,states, and many others)– GIS display capabilities– Relationship between discharge and area– very well received
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Design Discharge Profile, Mississippi River
University of Texas at Austin
150000
200000
250000
300000
350000
400000
450000
0 50 100 150 200 250 300 350
Des Moines
Rock
Iowa-Cedar
Des Moines
1-day, 100-yr peak flow
Mean Daily Discharge (cfs)
Distance (miles)
Contribution ofDes Moines RiverAlone: 128,000 cfsTributary: 49,000 cfs
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Jerry Perales
GIS-Based Infiltration Modeling
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Tenkiller Watershed
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Research Seann’s Thesis and Prior Work
• Research Seann’s Dissertation with focus on the Method section
• Research “A GIS Procedure for Merging NEXRAD Precipitation Data and Digital Elevation Models to Determine Rainfall-Runoff Modeling Parameters, CRWR Online Report 95-3, September 1995”.
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Data Needed
• The STATSGO soil databases for Oklahoma and Arkansas have been downloaded
• The NEXRAD image needs to be converted to a cell mesh
• The DEM for the watershed is needed.
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Eric Tate
Mapping Flood Water Surface Elevation
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Recent Activities
• Interim research report for TxDOT
• Media interviews
• HEC-RAS 2.2: a better output solution?
• Finished background chapter of thesis
• Experimentation with City of Austin photogrammetry data to create TINs:
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3D Terrain Modeling Example
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Research Areas
• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi
• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim
• Global runoff: Asante, Lear
• Nonpoint source pollution: Melancon, Osborne
• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate
• Internet: Favazza,Wei
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David Favazza
Map-Based Modeling on the Internet
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ESRI’s ArcExplorer• View maps via Internet and pan/zoom/querry as a
local user would with ArcView• Maps are currently being served from Ganges
using ESRI’s Internet Map Server for AE use• Advantages: More reliable than MapCafe; also
allows user to download user-specified portions of maps
• Downers: Requires user to download AE and run it locally - time intensive download; Not as powerful as MapObjects
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Kevin Wei
Displaying Environmental Maps on the Internet
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Overview of my research Project
Publishing database on the Internet
1. DataBase: Environmental Monitoring data (tabular format) in Pantex Facility. Six Chemicals.
Data processing: Using MS Access.
2. Evaluate different Internet GIS approaches. ArcView Internet Map Server(IMS) Map Object Internet Map Server(IMS) ArcExplore
which approach is more efficient and reliable.
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Data Processing. Key field
Using Easting and Northing data to build up a point coverage. How to?
Using loc_cod as key field to associate attributes with GIS shape file.
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Run Query in Access and import the query result into ArcView
Only 40 well’s geo information are given,so build up a query to pick up the data only from these 40 wells.
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ArcView & Access
1. Set up ODBC driver, select mdb file.2. In Arcview, go to SQL connect, import database into ArcView.3. Go to View and Add event theme to build up a new theme using Easting and Northing data.4. Convert the new theme to a shape file.
So you have a shape file with the information you are interested in.
Next step:
Working on the Internet Map Servers.
Arcview IMS can directly serve ArcView project.MapObject IMS and ArcExplore are primarily working with ESRI shape files.
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MapObjects and MOIMS 2.0
MapObjects is ESRI component software for adding mapping and GIS capabilities to Windowsapplications. The development environments can be VB, Visual C++…
MapObject IMS2.0 is IMS extension to MapObjects. It provides ready-to use software componentsthat enable you to run MapObjects applications and ArcExplore.aep file on the Internet.
In machine Rimac, Volta, Viper,we installed MOIMS2.0
Next time I ‘ll give more detailed information about MOIMS
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Research Review
Next Research Progress Report
Friday Dec18, 1998, 2PM, ECJ 9.236